Define electric field. State its SI unit and dimensions. - Vidyadip

Question

Define electric field. State its $SI$ unit and dimensions.

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Answer

$1.$ Electric field is the force experienced by a test charge in presence of the given charge at the given distance from it.
$\vec{E}=\lim _{q \rightarrow 0} \frac{\vec{F}}{q}$
$2.$ SI unit: newton per coulomb $(N/C)$ or volt per metre $(V/m).$
$3.$ Dimensions: $[L M T^{-3} A^{-1}]$

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